
Autumn Clematis (Clematis terniflora) is in the buttercup family family (Ranunculaceae). Across the U.S., iNaturalist users have logged 1,713 research-grade flowering observations of it in our sample, peaking in September.
Nationally it blooms mainly from August to September, but timing varies a lot by state and elevation — see the table below.
When to photograph Autumn Clematis: observations by month (U.S.)
About Autumn Clematis
Clematis terniflora (sweet autumn clematis, sweet autumn virginsbower, 圆锥铁线莲 yuan zhui tie xian lian) is a plant in the buttercup family, Ranunculaceae. It is native to countries in northeastern Asia (China, Japan, Korea, Mongolia, Russia (Siberia), Taiwan).. It was introduced into the United States in the late 1800s as an ornamental garden plant, and has naturalized in many of the eastern states. It is considered a Category II invasive plant in New Jersey, South Carolina and...From Wikipedia via iNaturalist — article, CC BY-SA.
Autumn Clematis by state
| State | Observations | Peak month | Main season |
|---|---|---|---|
| Virginia | 220 | September | Aug–Sep |
| New York | 168 | September | Sep–Sep |
| Maryland | 152 | September | Aug–Sep |
| Texas | 136 | August | Aug–Oct |
| Pennsylvania | 131 | September | Aug–Sep |
| New Jersey | 117 | September | Aug–Sep |
| Mississippi | 96 | August | Aug–Sep |
| Massachusetts | 76 | September | Sep–Sep |
| South Carolina | 72 | August | Aug–Aug |
| North Carolina | 65 | August | Aug–Sep |
| Delaware | 58 | September | Sep–Sep |
| District of Columbia | 47 | September | Aug–Sep |
| Georgia | 47 | August | Aug–Aug |
| Kentucky | 44 | August | Aug–Sep |
| Arkansas | 41 | August | Aug–Sep |
| Indiana | 36 | September | Sep–Sep |
| Ohio | 33 | September | Aug–Sep |
| Alabama | 29 | August | Aug–Aug |
| Tennessee | 22 | August | Aug–Sep |
| Oklahoma | 20 | September | Sep–Oct |
| Missouri | 19 | August | Aug–Sep |
| Louisiana | 13 | August | Jun–Aug |
| Connecticut | 12 | September | Sep–Sep |
| Illinois | 12 | September | Sep–Sep |
| Michigan | 9 | September | Sep–Sep |
| Rhode Island | 9 | September | Sep–Sep |
| Florida | 7 | August | Aug–Sep |
| Kansas | 6 | September | Aug–Nov |
| West Virginia | 6 | September | Sep–Sep |
Main season = months with at least 30% of the state's peak-month count.
Related wildflowers (buttercup family)

Lesser Celandine

Red Columbine

Western Columbine

Rue Anemone

Marsh Marigold
Wood Anemone

Blue Columbine

Tenpetal Anemone
Photography tips
- Photograph flowers on calm, overcast mornings to avoid wind blur and harsh shadows.
- Get low: a shallow depth of field (f/2.8–f/5.6) isolates a bloom against soft color.
- Stay on trails — trampling meadows kills plants and ruins next year's display.
- Try a kaleidoscope abstract of a single bloom with our online kaleidoscope tool.
FAQ
When is the best time to photograph Autumn Clematis?
Nationally, September has the most observations, with the main season from August to September.
Where is Autumn Clematis most often seen?
The most observations come from Virginia, New York, Maryland.